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RP2E INRA Université de Lorraine

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Enhanced survival of retinal ganglion cells is mediated by Müller glial cell-derived PEDF.

Experimental Eye Research, 127 (octobre), pp. 206-214.

Unterlauft, J.D., Claudepierre, T., Schmidt, M., Müller, K., Yafai, Y., Wiedemann, P., Reichenbach, A., Eichler, W.

2014

The death of retinal ganglion cells (RGC) leads to visual impairment and blindness in ocular neurodegenerative diseases, primarily in glaucoma and diabetic retinopathy; hence, mechanisms that contribute to protecting RGC from ischemia/hypoxia are of great interest. We here address the role of retinal glial (Müller) cells and of pigment-epithelium-derived factor (PEDF), one of the main neuroprotectants released from the glial cells. We show that the hypoxia-induced loss in the viability of cultured purified RGC is due to apoptosis, but that the number of viable RGC increases when co-cultured with Müller glial cells suggesting that glial soluble mediators attenuate the death of RGC. When PEDF was ablated from Müller cells a significantly lower number of RGC survived in RGC-Müller cell co-cultures indicating that PEDF is a major survival factor allowing RGC to escape cell death. We further found that RGC express a PEDF receptor known as patatin-like phospholipase domain-containing protein 2 (PNPLA2) and that PEDF exposure, as well as the presence of Müller cells, leads to an activation of nuclear factor (NF)-κB in RGC. Furthermore, adding an NF-κB inhibitor (SN50) to PEDF-treated RGC cultures reduced the survival of RGC. These findings strongly suggest that NF-κB activation in RGC is critically involved in the pro-survival action of Müller-cell derived PEDF and plays an important role in maintaining neuronal survival.

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214 Publications depuis 2013

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2019

ACL - Articles comité de lecture référencés bases de données HCÉRES

  • Adhesion Properties of Probiotic Lactobacillus strains Isolated from Tunisian Sheep and Goat Milks

    Journal of Agricultural Science and Technology, 21 (4), pp. pp-pp.

    Mahmoudi, I., Ben moussa, O., Khaldi, T. E. M., Kebouchi, M., Soligot-Hognon, C., Le Roux, Y., Hassouna, M.

  • Simulating rewetting events in intermittent rivers and ephemeral streams: a global analysis of leached nutrients and organic matter

    Global Change Biology, vv (nn), pp. pp-pp.

    Shumilova, O., Zak, D., Datry, T., Von schiller, D., Corti, R., Foulquier, A., Obrador, B., Tockner, K., Altermatt, F., Isabel arce, M., Arnon, S., Banas, D., Banegas-medina, A., Beller, E., Blanchette, M., Blanco-libreros, J.F., Blessing, J., Gonçalves boëchat, I., Boersma, K., Bogan, M.T., Bonada, N., Bond, N., Brintrup, K., Bruder, A., Burrows, R., Cancellario, T., Carlson, S.M., Cauvy-fraunié, S., Cid, N., Danger, M., De freitas terra, B., De girolamo, A.M., Del campo, R., Dyer, F., Elosegi, A., Emile, F., Febria, C., Figueroa, R., Four, B., Gessner, M.O., Gnohossou, P., Gómez cerezo, R., Gómez-gener, L., Graça, M.A.S., Guareschi, S., Gücker, B., Hwan, J.L., Kubheka, S., Langhans, S.D., Leigh, C., Little, C., Lorenz, S., Marshall, J., Mcintosh, A., Mendoza-lera, C., Meyer, E.I., Miliša, M., Mlambo, M.C., Moleón, M., Negus, P., Niyogi, D., Papatheodoulou, A., Pardo, I., Paril, P., Peši?, V., Rodríguez-lozano, P., Rolls, R.R., Sánchez-montoya, M.M., Savi?, A., Steward, A., Stubbington, R., Taleb, A., Vander vorste, R., Waltham, N., Zoppini, A., Zarfl, C.

2018

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2017

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2016

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2015

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2014

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2013

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